βουκέρως
From LSJ
οὐκ ἔστι λέουσι καὶ ἀνδράσιν ὅρκια πιστά → there are no pacts between lions and men, between lions and men there are no oaths of faith, there can be no covenants between men and lions
English (LSJ)
ων, gen. ω, A horned like an ox or cow, ἄγαλμα Hdt.2.41; β. παρθένος, of Io, A. Pr.588 (lyr.); Ἴακχος S.Fr.959. II = foreg., Dsc.2.102.